A mine broadcasting loudspeaker fixing frame

Abstract

This utility model relates to a fixing bracket for a mining loudspeaker, specifically within the field of broadcasting system technology. The utility model includes a base plate on which a rotating plate is mounted via a pivot. A positioning mechanism is provided between the base plate and the rotating plate. A support plate is mounted above the rotating plate via a set of elastic components, and the support plate has a loudspeaker fixing structure. Each elastic component includes at least two opposing, transversely mounted U-shaped plates. The upper and lower plates of each U-shaped plate are fixedly connected to the support plate and the rotating plate, respectively. The closed ends of the opposing U-shaped plates are adjacent, while their open ends face away from each other. In this utility model, the elastic components between the support plate and the rotating plate, and the U-shaped plates within these components, reduce the amplitude of the loudspeaker's vibration during operation, preventing damage to the electronic components inside the loudspeaker due to excessive amplitude.

Description

Technical Field

[0001] This utility model relates to a fixing bracket for a mining loudspeaker, and pertains to the field of broadcasting system technology. Background Technology

[0002] In harsh environments such as mines, public address systems are typically used to ensure the effective transmission of safety information and the accurate issuance of work instructions. As a key component of this system, the stability and reliability of mine loudspeakers are crucial for ensuring the safety of mine operations. Existing mine loudspeakers generally use rigid connections to directly fix the loudspeakers to walls or supports. This rigid connection method is prone to displacement or even damage when exposed to vibrations in the mining environment, affecting their normal use. This is especially true during the continuous or sudden vibrations generated during mining operations, which increases the risk of damage to the loudspeaker equipment and consequently affects the stability of the entire public address system. Utility Model Content

[0003] The purpose of this utility model is to design a fixing bracket for a mining loudspeaker that can provide shock absorption.

[0004] This utility model includes a base plate, on which a rotating plate is mounted via a pivot, and a positioning mechanism is provided between the base plate and the rotating plate. A support plate is mounted above the rotating plate via a set of elastic components, and a speaker fixing structure is located on the support plate. Each elastic component includes at least two opposing transverse U-shaped plates, the upper and lower plates of each U-shaped plate being fixedly connected to the support plate and the rotating plate respectively. The closed ends of the opposing U-shaped plates are adjacent, and their open ends are opposite. The speaker designed in this manner allows the elastic components to reduce the amplitude of the speaker during vibration, preventing damage to the electronic components inside the speaker due to excessive amplitude.

[0005] Furthermore, two elastic components are provided between the rotating plate and the support plate. The two elastic components are arranged on both sides of the rotating shaft and are on the same straight line as the rotating shaft. Flexible pads are also installed on both sides of the rotating plate between the rotating plate and the support plate. The height of the flexible pads is less than the height of the two elastic components. Among the two elastic components, the U-shaped plate opening away from the rotating shaft faces the adjacent flexible pad.

[0006] Furthermore, connecting plates are bolted to the two opposing surfaces of the two flexible pads. Each connecting plate has a protruding center, forming a longitudinal mounting hole between the connecting plate and the flexible pad. The rotating plate is wider than the support plate, and a positioning post corresponding to the longitudinal mounting hole is fixed at a position where the rotating plate is wider than the support plate. The positioning post passes through the longitudinal mounting hole. The height of the connecting plate is less than the height of the flexible pad. With this configuration, the flexible pad is easily installed by simply fitting the longitudinal mounting hole onto the positioning post and then rotating the flexible pad between the rotating plate and the support plate.

[0007] Furthermore, a buffer gap is left between the lower edge of the connecting plate and the rotating plate.

[0008] Furthermore, an L-shaped rib is provided below the base plate corresponding to the pivot position. The horizontal plate of the rib is connected to the pivot. A first positioning hole, penetrating the rib and the base plate, is located on the rib away from the pivot. A set of second positioning holes, aligned with the first positioning hole, is provided on the rotating plate. A detachable positioning bolt passes through the first and second positioning holes to position the rib, base plate, and rotating plate. This design allows for adjustment of the loudspeaker's orientation, expanding its applicability.

[0009] Furthermore, L-shaped lugs are fixed on the lower surface of the bottom plate on both sides of the vertical plate of the stiffening plate.

[0010] Furthermore, the elastic component includes an upper panel and a lower panel that are fixedly connected to the rotating plate and the support plate, respectively, and the U-shaped plate, the upper plate, and the lower plate are fixedly connected to the upper panel and the lower panel, respectively. With the elastic component configured in the above manner, the height of each elastic component can be adjusted in advance during installation to ensure that the height of each elastic component is consistent, thus avoiding uneven force distribution.

[0011] In this invention, an elastic component is provided between the support plate and the rotating plate. The U-shaped plate in the elastic component can reduce the amplitude of the loudspeaker during vibration, preventing damage to the electronic components inside the loudspeaker due to excessive amplitude. A flexible pad is also provided to absorb the downward impact of the support plate during vibration, reducing the rebound force of the U-shaped plate and preventing excessive compression or stretching that could lead to deformation, thus improving the service life of the U-shaped plate. Attached Figure Description

[0012] Figure 1 This is a front view of an embodiment of the present utility model;

[0013] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0014] Figure 3This is a left view of an embodiment of the present utility model;

[0015] Figure 4 This is a top view of an embodiment of the present utility model;

[0016] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0017] Figure 6 This is a bottom view of an embodiment of the present utility model;

[0018] The components include: 1. base plate, 2. pivot, 3. rotating plate, 4. stiffening plate, 5. L-shaped support lug, 6. first positioning hole, 7. second positioning hole, 8. positioning bolt, 9. support plate, 10. elastic component, 11. U-shaped plate, 12. top panel, 13. bottom panel, 14. positioning column, 15. flexible pad, 16. connecting plate, 17. longitudinal mounting hole, and 18. loudspeaker. Detailed Implementation

[0019] by Figure 1 Define the up, down, left, right, front, and back directions in this embodiment.

[0020] As shown in the figure, this embodiment includes a base plate 1. A rotating shaft 2 is fixedly connected to the base plate 1, with its lower end passing through the base plate 1 and flush with its lower surface. A rotating plate 3 is mounted above the rotating shaft 2, rotatably connected to the rotating shaft 2 and capable of rotating around the rotating shaft 2. A gap is left between the base plate 1 and the rotating plate 3 to prevent the rotating plate 3 from rubbing against the upper surface of the base plate 1 during rotation. An L-shaped rib 4 is mounted below the base plate 1 corresponding to the position of the rotating shaft 2, with the upper horizontal plate portion of the rib 4 fixedly connected to the rotating shaft 2 and the lower surface of the base plate 1. A positioning mechanism is provided between the base plate 1 and the rotating plate 3. In this embodiment, a first positioning hole 6 is provided on the front side of the stiffening plate 4 away from the rotating shaft 2, and the first positioning hole 6 penetrates the stiffening plate 4 and the base plate 1. A set of second positioning holes 7 aligned with the circumference of the first positioning hole 6 is provided on the lower surface of the rotating plate 3. Each second positioning hole 7 is a threaded hole. In use, the stiffening plate 4, the base plate 1, and the rotating plate 3 can be positioned by passing a detachable positioning bolt 8 through the first positioning hole 6 and one second positioning hole 7. The vertical plate portion at the rear end of the stiffening plate 4 is flush with the rear surface of the base plate 1. L-shaped lugs 5 are provided on the left and right sides of the vertical plate. The rear end of the L-shaped lugs 5 is flush with the rear surface of the base plate 1, and the base plate 1 can be fixed to the wall by bolts. After the base plate 1 is installed, the vertical plate portion of the stiffening plate 4 can contact the wall to support the base plate 1, so that the base plate 1 can be installed on a single wall, improving its installation convenience.

[0021] A support plate 9 is provided above the rotating plate 3. A set of elastic components 10 is provided between the support plate 9 and the rotating plate 3. In this embodiment, two elastic components 10 are provided, which are respectively provided on the left and right sides of the rotating shaft 2 and are located on the same straight line as the rotating shaft 2. Each elastic component 10 includes two horizontally mounted U-shaped plates 11. An upper panel 12 fixedly connected to the support plate 9 is provided above the U-shaped plate 11, and a lower panel 13 fixedly connected to the rotating plate 3 is provided below it. The upper and lower plates of the U-shaped plate 11 are fixedly connected to the upper panel 12 and the lower panel 13, respectively. During installation, the upper panel 12 and the lower panel 13 are first installed on the U-shaped plate 11 to facilitate the pre-adjustment of the height of each elastic component 10, so that the height of each elastic component 10 is consistent and the phenomenon of uneven force is avoided. In each set of elastic components 10, the closed ends of the two U-shaped plates 11 are adjacent and the open ends are opposite, so that the elastic component 10 has an "I" shaped structure, which can improve the load-bearing capacity of the elastic component 10 and prevent structural deformation.

[0022] Flexible pads 15 are respectively provided on the left and right sides of the rotating plate 3, located between the rotating plate 3 and the support plate 9. In this embodiment, four flexible pads 15 are provided. The height of each flexible pad 15 is less than the height of the two elastic components 10 in the uncompressed state. When subjected to vibration, the flexible pads 15 can absorb the downward impact of the support plate 9 during vibration, reduce the rebound force of the U-shaped plate 11, and prevent the U-shaped plate 11 from being over-compressed or stretched due to excessive vibration, thus preventing deformation. Among the two elastic components 10, the U-shaped plate 11 away from the rotating shaft 2 has its opening facing the flexible pad 15 on the adjacent side. When the elastic component 10 is compressed by vibration, it can transfer the downward impact of the support plate 9 to the flexible pad 15, reducing the load on the U-shaped plate 11.

[0023] Each flexible pad 15 is symmetrically arranged on the left and right sides. A connecting plate 16 is provided on each of the two opposing surfaces of two opposite flexible pads 15. The connecting plate 16 is fixedly connected to the flexible pad 15 by bolts. The height of the connecting plate 16 is less than the height of the flexible pad 15, and a gap is left between its lower edge and the rotating plate 3 to provide buffer space when the flexible pad 15 is compressed by vibration. An arched protrusion is provided in the middle of the connecting plate 16, forming a longitudinal mounting hole 17 between the connecting plate 16 and the flexible pad 15. In this embodiment, the width of the rotating plate 3 is greater than that of the support plate 9. A positioning post 14 matching the longitudinal mounting hole 17 is provided at a position where the rotating plate 3 is wider than the support plate 9. The positioning post 14 is fixedly connected to the rotating plate 3, passes through the longitudinal mounting hole 17, and is used to fit the connecting plate 16. When installing or replacing the flexible pad 15, the longitudinal mounting hole 17 is fitted onto the positioning post 14, and then the flexible pad 15 is rotated between the rotating plate 3 and the support plate 9 to complete the installation. Installation and replacement are convenient. The upper end of the support plate 9 is equipped with a speaker fixing structure, and a broadcast speaker 18 is fixedly installed by bolts.

[0024] In this embodiment, during installation, the rear surface of the base plate 1 is first placed against the wall to be installed. Then, bolts are installed in the L-shaped lugs 5 to fix the base plate. At this time, the vertical plate at the rear end of the stiffener 4 is in contact with the wall, and its inclined plate supports the front end of the base plate 1. Then, the rotating plate 3 is rotated to make an adaptive adjustment to the orientation of the loudspeaker 18. After the adjustment is completed, the positioning bolt 8 is inserted into the first positioning hole 6 and screwed into the corresponding second positioning hole 7 to complete the installation of the loudspeaker. When vibration occurs, each U-shaped plate 11 reduces the amplitude of the loudspeaker 18 through its own rebound force; at the same time, the flexible pad 15 absorbs the downward impact of the support plate 9, thereby reducing the upward rebound force of each U-shaped plate and further reducing the amplitude of the loudspeaker 18.

Claims

1. A mining broadcast horn mounting comprising a base plate characterised by: A rotating plate is mounted on the base plate via a pivot, and a positioning mechanism is provided between the base plate and the rotating plate. A support plate is mounted above the rotating plate via a set of elastic components, and the support plate has a horn-shaped fixing structure. Each elastic component includes at least two horizontally mounted U-shaped plates, and the upper and lower plates of each U-shaped plate are fixedly connected to the support plate and the rotating plate, respectively. The closed ends of the two U-shaped plates are adjacent, and the open ends are opposite to each other.

2. The mine broadcast horn mounting bracket of claim 1, wherein: Two elastic components are provided between the rotating plate and the support plate. The two elastic components are arranged on both sides of the rotating shaft and are on the same straight line as the rotating shaft. Flexible pads are also installed on both sides of the rotating plate between the rotating plate and the support plate. The height of the flexible pads is less than the height of the two elastic components. Among the two elastic components, the U-shaped plate opening away from the rotating shaft faces the adjacent flexible pad.

3. The mine broadcast horn mounting bracket of claim 2, wherein: Two flexible pads are bolted to two opposing surfaces, each with a connecting plate. The connecting plate has an outward protrusion in the middle, forming a longitudinal mounting hole between the connecting plate and the flexible pad. The width of the rotating plate is greater than that of the support plate. A positioning post corresponding to the longitudinal mounting hole is fixed at a position where the rotating plate is wider than the support plate. The positioning post passes through the longitudinal mounting hole. The height of the connecting plate is less than that of the flexible pad.

4. The mine broadcast horn mounting bracket of claim 3, wherein: A buffer gap is left between the lower edge of the connecting plate and the rotating plate.

5. The mining broadcast horn mounting bracket of claim 1 or 2 or 3 or 4, wherein: An L-shaped rib is provided below the base plate corresponding to the position of the pivot. The horizontal plate of the rib is connected to the pivot. The rib is provided with a first positioning hole that penetrates the rib and the base plate at a position away from the pivot. The rotating plate has a set of second positioning holes that can be aligned with the first positioning hole. A detachable positioning bolt passes through the first positioning hole and the second positioning hole to position the rib, the base plate and the rotating plate.

6. The mine broadcast horn mounting bracket of claim 5, wherein: L-shaped lugs are fixed on the lower surface of the bottom plate on both sides of the vertical plate of the stiffening plate.

7. The mine broadcast horn mounting of claim 1 or 2 or 3 or 4 wherein: The elastic component includes an upper panel and a lower panel that are fixedly connected to the rotating plate and the support plate, respectively, and the U-shaped plate, the upper plate, and the lower plate are fixedly connected to the upper panel and the lower panel, respectively.

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